Lower Rio Grande Valley National Wildlife Refuge Lower Rio Grande Valley National Wildlife RefugeStation reference point La Casita East (Open)1,544 acres East Lake (Special regs)1,756 acres La Puerta (Special regs)4,072 acres La Sal Del Rey (Special regs)5,405 acres La Sal Vieja (Special regs)1,276 acres Schaleben (Special regs)1,524 acres Tecolote (Special regs)1,119 acres Teniente East (Special regs)1,462 acres Teniente West (Special regs)4,177 acres Willamar (Special regs)1,162 acres Closed (Closed)52,486 acres